can anyone help me answer this
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Answer:

x=-3.5 or -3 1/2

Step-by-step explanation:

2(x+3)+7x=3(x-2)-9

2x+6+7x=3x-6-9

9x+6=3x-15

6x=-21

x=-3.5 or -3 1/2

Answer:

Step-by-step explanation:

2x - 2 ≤ 12

2x ≤ 14

x ≤ 7

Answer:

-1

Step-by-step explanation:

Find the slope using the slope formula

m = (y2-y1)/(x2-x1)

    = (-3-5)/(6 - -2)

   = (-3-5)/(6+2)

   = -8/8

   = -1

Answer:

Step-by-step explanation:

The slope of a line given two points can be found by using the formula

[tex]m = \frac{ y_2 - y _ 1}{x_ 2 - x_ 1} [/tex]

where

(x1 , y1) and (x2 , y2) are the points

From the question the points are

(-2,5) and (6,-3)

The slope is

[tex]m = \frac{ - 3 - 5}{6 + 2} = - \frac{8}{8} = - 1[/tex]

We have the final answer as

Hope this helps you

Answer: 44 feet.

Step-by-step explanation: If the object is moving at a speed of 6 miles per month, that's 6 miles for every 720 hours at the very least. That's 1 mile for every 120 hours. That's 5280 feet for every 120 hours. The object is moving 44 feet every hour.

The speed of the object is 43.39 feet per hour.

It is the conversion of one unit to another unit with its standard conversion.

Example:

1 minute = 60 seconds

1 km = 1000 m

We have,

6 miles = 1 month

1 miles = 5280 feet

1 month = 730 hours

Now,

6 miles = 6 x 5280 feet

6 miles = 31680 feet

So,

31680 feet = 730 hours

Divide both sides by 730.

31680/730 feet = 1 hour

43.39 feet = 1 hour

Thus,

Speed is 43.39 feet per hour.

Learn more about unit conversion here:

https://brainly.com/question/13899873

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Answer:

Step-by-step explanation:

2X + 1 + 3X - 2 + 4X - 5 = 180

9X - 6 = 180

9X = 174

9   =   174

ـــــــــــــــــــــ

9         9

X = 19.333

The perimeter of the triangle in terms of x given the three side lengths is  9x - 6.

A triangle is a three-sided polygon with three edges and three vertices. the sum of angles in a triangle is 180 degrees.

The perimeter of a triangle = sum of the side lengths

(2x + 1) + (3x - 2) + (4x - 5) = 9x - 6

To learn more about triangles, please check: https://brainly.com/question/22949981

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Answer:

I'd say 1 smoothie per day

Step-by-step explanation:

Answer: 137 letters.

Step-by-step explanation:

The data is:

The number has 4 digits.

The number is a multiple of 5

The number is a multiple of 7

The last digit is a 0.

Then, let's find all the possible numbers that met these conditions.

Our number can be formed with 4 digits, A, B, C and D.

D is the last one, so we have  D = 0.

So the number is: ABC0

We know that all the numbers that end with 0 are multiples of 5, so that condition does not matter.

Now, a number is divisible by 7 if:

Take the last digit of the number, double it and subtract it to the remaining number, if the result is multiple of 7, then the initial number is a multiple of 7.

In this case the last digit is 0, so when we double it and subtract it, we actually are not changing the other 3 digits.

Then we have that:

ABC must be a multiple of 7.

So now our problem reduces to find the number of 3-digit numbers that are multiples of 7.

The first multiple of 7 that has 3 digits is:

7*15 = 105.

And the largest possible 3 digit number is 999, now let's try to divide it by 7 to see if this is also a multiple of 7.

999/7 = 142.7

the quotient is not integer, so 999 is not a multiple of 7.

The next option is 998, we can do the same here:

998/7 = 142.6

And so on, we will find that the largest 3 digit multiple of 7 is:

994, such that:

7*152=994.

Then we have:

Smallest: 7*15 = 105

Largest: 7*152 = 994.

Then the number of multiples of 7 between 999 and 100 will be equal to the difference between the quotients between the multples and 7.

105/7 = 15

994/7 = 152

152 - 15 =  137

So we have 137 multiples of 7 with 3 digits.

Then we have 137 4-digit numbers, that end with a zero and also are divisible by 5 and 7.

So John must send 137 letters if he wants to be shure that Peter will get the card.

Answer:

y=-3/2x+3

Step-by-step explanation:

The slope is -3/2x because it's going down 3 and to the right 2.

And it intercepts the y-axis at 3. Thus, 3 is the y-intercept.

Answer:

y = -3/2 x +3

Step-by-step explanation:

We can use the slope intercept form

y = mx+b where m is the slope and b is the y intercept

The y intercept is 3

Now to find the slope

Pick two points on the line

( 0,3) and ( 2,0)

m = ( y2-y1)/(x2-x1)

   = ( 0-3)/(2-0)

   = -3/2

The equation of the line is

y = -3/2 x +3

Answer:

0.31

Step-by-step explanation:

31 / 100 = 0.31

Answer:

[see below]

Step-by-step explanation:

Rational Numbers:

Irrational Numbers:

Hope this helps.

Answer:

4:3

Step-by-step explanation:

a+b = 7 units

a = 4 units

b = 7 - 4 units

Thus,

a:b

-----

4:3

(a+b) : a = 7:4

a = 4

a+b= 7

7- 4 = b

b = 3

Hope this will help....

Answer:

Try 0 or 1

Step-by-step explanation:

Scince the number before rounding is 4, try rounding it to 0 or 1.

Answer:

12

Step-by-step explanation:

2 2/5 * 5 = 12

Answer:

12

Multiply the equation.

2 2/5 x 5 = 12.

2 x 5 = 10.

2/5 x 5 = 2.

Add 10 + 2. You get 12.

Answer:

The answer is 10.

Step-by-step explanation:

40÷4=10.

Answer:

(-2,-6) is your answer..

hope this helped you

please mark as the brainliest (ㆁωㆁ)

Answer:

8/25

Step-by-step explanation:

0.32 as a fraction is 8/25

Answer:

Its 8/25

Step-by-step explanation:

Answer:

8.9 × 10^{4}

Step-by-step explanation:

Calculating scientific notation for a positive integer is simple, as it always follows this notation: a x 10b.

Follow the steps below to see how 89,000 is written in scientific notation.

Step 1

To find a, take the number and move a decimal place to the right one position.

Original Number: 89,000

New Number: 8.9000

Step 2

Now, to find b, count how many places to the right of the decimal.

New Number: 8 . 9 0 0 0

Decimal Count: 1 2 3 4

There are 4 places to the right of the decimal place.

Step 3

Building upon what we know above, we can now reconstruct the number into scientific notation.

Remember, the notation is: a x 10b

a = 8.9 (Please notice any zeroes on the end have been removed)

b = 4

Now the whole thing:

8.9 x 10^{4}

Step 4

Check your work:

10^{4} = 10,000 x 8.9 = 89,000

Answer:0.09 < 0.6 < 0.7 < 0.8 < 0.99 < 1

Step-by-step explanation:

Answer:

3

Step-by-step explanation:

If she uses 1 cup of sugar every time she makes blueberry muffins and there are only 3 cups of sugar, she can only make her recipe for blueberry muffins 3 times before her sugar runs out

Answer:

40%

Step-by-step explanation

12 is a 40% decrease of 20.

Steps:

Percentage of decrease = |20 - 12|/20 = 8/20 = 0.4 = 40

Answer:

40%

Step-by-step explanation:

Answer:

18.75

Step-by-step explanation:

You add all the numbers together, then divide that total by the amount of numbers you added together.